222202120211 has 2 divisors, whose sum is σ = 222202120212. Its totient is φ = 222202120210.

The previous prime is 222202120177. The next prime is 222202120237. The reversal of 222202120211 is 112021202222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222202120211 - 2²² = 222197925907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222202120211.

It is not a weakly prime, because it can be changed into another prime (222202120271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111101060105 + 111101060106.

It is an arithmetic number, because the mean of its divisors is an integer number (111101060106).

Almost surely, 2^222202120211 is an apocalyptic number.

222202120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222202120211 is an equidigital number, since it uses as much as digits as its factorization.

222202120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222202120211 its reverse (112021202222), we get a palindrome (334223322433).

The spelling of 222202120211 in words is "two hundred twenty-two billion, two hundred two million, one hundred twenty thousand, two hundred eleven".